The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary

Frieman, Joshua A, Bassett, Bruce, Becker, Andrew, Romer, Kathy and et al, (2008) The Sloan Digital Sky Survey-II Supernova Survey: Technical Summary. Astronomical Journal, 135 (1). ISSN 0004-6256

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The Sloan Digital Sky Survey-II (SDSS-II) has embarked on a multi-year project to identify and measure light curves for intermediate-redshift (0.05 < z < 0.35) Type Ia supernovae (SNe Ia) using repeated five-band (ugriz) imaging over an area of 300 sq. deg. The survey region is a stripe 2.5 wide centered on the celestial equator in the Southern Galactic Cap that has been imaged numerous times in earlier years, enabling construction of a deep reference image for the discovery of new objects. Supernova imaging observations are being acquired between September 1 and November 30 of 2005-7. During the first two seasons, each region was imaged on average every five nights. Spectroscopic follow-up observations to determine supernova type and redshift are carried out on a large number of telescopes. In its first two three-month seasons, the survey has discovered and measured light curves for 327 spectroscopically confirmed SNe Ia, 30 probable SNe Ia, 14 confirmed SNe Ib/c, 32 confirmed SNe II, plus a large number of photometrically identified SNe Ia, 94 of which have host-galaxy spectra taken so far. This paper provides an overview of the project and briefly describes the observations completed during the first two seasons of operation.

Item Type: Article
Additional Information: other co-authors
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Depositing User: Kathy Romer
Date Deposited: 06 Feb 2012 21:10
Last Modified: 25 Jun 2012 15:18
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